Talk:Thulium

Rather nice neutron reflector
Properties as a neutron reflector approach that of Be when thick.

This seems to correspond to Hardtack II testing of various Oralloy tactical weapons. 97.127.182.235 (talk) 17:51, 23 March 2013 (UTC)

Quality of the chemical properties section- GA seems optimistic
There are a few odd statements which stand out. e.g.
 * +4 valence states-- presumably that means +4 oxidation state/number- and where did the +4 come from?!
 * Thulium(II) compounds include thulium halides- which halides? - certainly not F!

Some very lightweight web references, and no heavyweight chemistry textbooks- e.g. Greenwood, Wiberg, Housecroft, no specialist books - e.g. Cotton, Atwood. Unreferenced wide ranging statement "Thulium reacts with various metallic and non-metallic elements forming a range of binary compounds, including TmN, TmS, TmC2, Tm2C3, TmH2, TmH3, TmSi2, TmGe3, TmB4, TmB6 and TmB12."

Axiosaurus (talk) 14:38, 5 March 2014 (UTC)
 * Yes, looking back at it from five years' difference I definitely agree. I'll get Tb done properly and meanwhile come back and fix this one. Double sharp (talk) 16:29, 6 May 2017 (UTC)

Check dates
In all three places where a discovery date is mentioned (lede, box, and history), it says 1879, but in the Thulium(III) oxide article, the date is given as 1878. I'm going to put a similar note on that page.

WesT (talk) 19:58, 12 September 2017 (UTC)
 * I checked it a while ago IIRC for Timeline of chemical element discoveries; it is 1879. I'll correct it on the other page. Double sharp (talk) 03:18, 13 September 2017 (UTC)

Who did the 15,000 recrystallizations of thulium bromate to obtain pure thulium?
Article Theodore William Richards cites John Emsley's book that says it was Richards who did this. Emsley p. 443: "In 1911, the American chemist Theodore William Richards performed 15 000 recrystallizations of thulium bromate in order to obtain a pure sample of the element and so determine exactly its atomic weight." The present article says it was Charles James and uses his 1911 paper as (primary) source. What is the correct story? I think this is a mistake in Emsley's work as the Thulium I paper mentions the operation count 15 000. jni (delete)...just not interested 19:21, 30 January 2018 (UTC)
 * I know this is a serious question, but the way the section heading is worded makes me laugh. It sounds like the 15,000 recrystallizations of thulium bromated someone in order to obtain pure thulium. Poor guy. – Corinne (talk) 20:51, 30 January 2018 (UTC)

nice
nice — Preceding unsigned comment added by 2001:56A:FA36:9C00:CD7F:E15C:515A:52F9 (talk) 03:25, 27 May 2022 (UTC)


 * Why are you joking in wiki Abab9579 (talk) 02:04, 27 October 2023 (UTC)
 * frfr so unprof Jan Eten (talk) 04:24, 11 June 2024 (UTC)